Chiang Mai Journal of Science

Each individual’s fingerprint pattern is unique and polygenically inherited. Previous empirical studies have shown variation in fingerprint pattern types as well as variation in fingerprint pattern concordance between males and females and between populations. However, few studies have examined these characteristics in the Thai population. Therefore, the present study aims to examine differences in fingerprint pattern types between the sexes and differences in fingerprint pattern concordance between homologous fingers among healthy Thai adolescent subjects. In this study, the proportions of fingerprint pattern types were compared with Asian, African, and Caucasian populations. A sample of 724 males and 1410 females from northeastern Thailand gave consent and had their ten fingertips scanned using Automated Inkless Fingerprint Imaging Software. The types of fingerprint patterns were identified and classified into arch, radial loop, ulnar loop, whorl, and double loop whorl types. To test for differences between the sexes, Chi-square (